Evaluating the Application of Portable Safety Equipment in Nuclear Power Plants using Multi-unit PSA 


Vol. 38,  No. 3, pp. 110-120, Jun.  2023
10.14346/JKOSOS.2023.38.3.110


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  Abstract

Following the Fukushima accident, portable equipment employed as accident mitigating systems have been installed and operated to reduce core damage and large early release frequencies. In addition, the establishment of an accident management strategy has gained importance. This study investigated the current status of portable equipment including the international portable equipment FLEX (diverse and flexible coping strategies), and domestic portable equipment multi-barrier accident coping strategy (MACST). Research on optimal utilization of MACST remains insufficient. As a preliminary study for establishing an optimal strategy, sensitivity studies were conducted to facilitate the priority of use on portable equipment, number of portable equipment, and dependency of operator actions based on a multi-unit probabilistic safety assessment model. The results revealed the conditions that reduced the multi-unit and site conditional core damage probabilities, indicating the optimal strategy of MACST. The results of this study can be used as a reference for establishing an optimal strategy that utilizes domestic safety equipment in the future.

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  Cite this article

[IEEE Style]

윤재영, 임호곤, 박종우, "Evaluating the Application of Portable Safety Equipment in Nuclear Power Plants using Multi-unit PSA," Journal of the Korean Society of Safety, vol. 38, no. 3, pp. 110-120, 2023. DOI: 10.14346/JKOSOS.2023.38.3.110.

[ACM Style]

윤재영, 임호곤, and 박종우. 2023. Evaluating the Application of Portable Safety Equipment in Nuclear Power Plants using Multi-unit PSA. Journal of the Korean Society of Safety, 38, 3, (2023), 110-120. DOI: 10.14346/JKOSOS.2023.38.3.110.

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pISSN : 1229 - 9197
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